CN209913088U

CN209913088U - Connector, mobile terminal and audio equipment

Info

Publication number: CN209913088U
Application number: CN201920789464.3U
Authority: CN
Inventors: 张伟
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-01-07
Anticipated expiration: 2029-05-28

Abstract

The application discloses connector, mobile terminal and audio equipment belongs to audio frequency technical field. The mobile terminal includes: a housing; a main board; the plurality of second connecting terminals are arranged in a connecting area on the surface of the shell and are all connected with the main board, and the plurality of second connecting terminals are used for being connected with the plurality of first connecting terminals of the connector in a one-to-one correspondence mode; the second detection terminal is arranged in the connection area and connected with the mainboard, and is used for forming a voltage detection device used for detecting the voltage change of an electric signal between the second detection terminal and the first detection terminal with the first detection terminal of the connector. Therefore, the opening of the hole in the shell can be avoided, and the follow-up operation can be executed after the mobile terminal and the connector are detected to be successfully connected, so that the use efficiency is improved.

Description

Connector, mobile terminal and audio equipment

Technical Field

The present application relates to the field of audio technologies, and more particularly, to a connector, a mobile terminal, and an audio device.

Background

The requirements of users on the display effect of the mobile terminal are higher and higher. More mobile terminal manufacturers begin to select and expand the area of the display area in the display screen to achieve the effect of a full screen.

The comprehensive screen mobile phone not only improves the visual experience of a user, but also has a more attractive appearance. However, at present, the mobile phone still needs to be provided with an earphone hole, so that the user can use the earphone hole to connect the mobile phone and the earphone, and the appearance of the whole mobile phone is affected by the earphone hole.

SUMMERY OF THE UTILITY MODEL

The application provides a connector, a mobile terminal and an audio device, so as to overcome the defects.

In a first aspect, an embodiment of the present application provides a connector, including: the audio connecting terminal is used for connecting with external audio equipment; the first connecting terminals are connected with the audio connecting terminals, the first connecting terminals are used for being connected with second connecting terminals of a mobile terminal in a one-to-one correspondence mode, and the first connecting terminals and the second connecting terminals are used for realizing transmission of audio signals between the external audio equipment and the mobile terminal; the first detection terminal is used in cooperation with the second detection terminal of the mobile terminal to form a voltage detection device for detecting the change of the voltage of the electric signal between the first detection terminal and the second detection terminal.

In a second aspect, an embodiment of the present application further provides a mobile terminal, including: a housing; a main board; the second connecting terminals are arranged in a connecting area of the surface of the shell and are all connected with the mainboard, and the second connecting terminals are used for being connected with the first connecting terminals of the connector in a one-to-one correspondence mode, wherein the second connecting terminals are used for realizing the transmission of audio signals between the mainboard and the first connecting terminals of the connector; and the second detection terminal is arranged in the connection area, is connected with the mainboard and is used in cooperation with the first detection terminal of the connector to form a voltage detection device for detecting the change of the voltage of the electric signal between the second detection terminal and the first detection terminal.

In a third aspect, an embodiment of the present application further provides an audio device, including an audio device body and the connector, where the audio device body is connected to the audio connection terminal of the connector.

Compared with the prior art, the scheme that this application provided, mobile terminal and outside audio equipment pass through the connector and connect, specifically, the connector includes audio connecting terminal and a plurality of first connecting terminal, and this audio connecting terminal is used for being connected with outside audio equipment, and mobile terminal's casing surface is provided with a plurality of second connecting terminal, and a plurality of first connecting terminal are connected with a plurality of second connecting terminal one-to-one of mobile terminal, a plurality of first connecting terminals with a plurality of second connecting terminal connect the realization outside audio equipment with audio signal's between the mobile terminal transmission. In addition, the mobile terminal is provided with the second detection terminal, so that the second detection terminal is matched with the first detection terminal of the connector for use to form a voltage detection device, the voltage detection device can detect the voltage change of the electric signal between the first detection terminal and the second detection terminal and send the voltage change to a main board of the mobile terminal, and when the main board determines that the voltage change meets the preset condition, the first connection terminals are judged to be successfully connected with the second connection terminals. Therefore, through setting up a plurality of second connecting terminal at mobile terminal's casing surface, can avoid trompil in the casing, avoid the setting in earphone hole promptly, mobile terminal's outward appearance face keeps intact, and structural waterproof dustproof and the design of reliability is simpler. Moreover, after the mobile terminal and the connector are detected to be successfully connected, the follow-up operation can be executed, and the use efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 shows a schematic structural diagram of an audio playing system provided by an embodiment of the present application;

FIG. 2 illustrates a schematic diagram of a connector provided by an embodiment of the present application from a first perspective;

FIG. 3 illustrates a schematic view of a connector provided in accordance with another embodiment of the present application from a first perspective;

FIG. 4 illustrates a schematic view of a connector provided in accordance with a further embodiment of the present application from a first perspective;

fig. 5 is a schematic structural diagram of a connector provided by an embodiment of the present application in a second viewing angle;

FIG. 6 is a schematic diagram of a connector according to another embodiment of the present application from a second perspective;

FIG. 7 illustrates a cross-sectional view A-A' of FIG. 6 according to an embodiment of the present application;

FIG. 8 illustrates a cross-sectional view A-A' of FIG. 6 as provided by another embodiment of the present application;

fig. 9 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application;

fig. 10 shows a partial enlarged view at B in fig. 7;

fig. 11 is a schematic structural diagram of a mobile terminal according to another embodiment of the present application;

FIG. 12 illustrates a circuit schematic of a detection circuit provided by an embodiment of the present application;

FIG. 13 shows a circuit schematic of a detection circuit provided in another embodiment of the present application;

fig. 14 is a schematic diagram illustrating connection of a mobile terminal and a connector according to an embodiment of the present application;

FIG. 15 illustrates a partial enlarged view at B in FIG. 14 provided by an embodiment of the present application;

FIG. 16 shows an enlarged view of a portion of FIG. 14 at B in accordance with another embodiment of the present application;

fig. 17 is a schematic structural diagram of an external audio device provided in an embodiment of the present application;

fig. 18 shows a schematic structural diagram of an audio device provided in an embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

The display screen generally plays a role in a mobile terminal such as a mobile phone or a tablet computer to display contents such as text, pictures, application icons or videos. With the development of touch technologies, more and more display screens arranged on mobile terminals are touch display screens, and when a user is detected to perform touch operations such as dragging, clicking, double clicking, sliding and the like on the touch display screen under the condition of arranging the touch display screens, the touch operation of the user can be responded.

With the increasing requirements of users on the definition and the fineness of displayed contents, more mobile terminals adopt touch display screens with larger sizes to achieve the display effect of a full screen. However, in the process of setting a touch display screen with a large size, it is found that functional devices such as a front camera, a proximity optical sensor, and a receiver, which are arranged at the front end of the mobile terminal, affect an area that the touch display screen can extend to.

Generally, a mobile terminal includes a front panel, a rear cover, and a bezel. The front panel includes a forehead area, a middle screen area and a lower key area. Generally, the forehead area is provided with a sound outlet of a receiver and functional devices such as a front camera, the middle screen area is provided with a touch display screen, and the lower key area is provided with one to three physical keys. With the development of the technology, the lower key area is gradually cancelled, and the physical keys originally arranged in the lower key area are replaced by the virtual keys in the touch display screen.

Some mobile terminals set up the hole in the display area of touch-control display screen, and the mode of setting up the functional device that the forehead district set up to downthehole in a concentrated manner realizes expanding the forehead district originally for the display area of touch-control display screen to increase the area in display area, thereby realize the effect of full face screen.

However, the inventor finds in research that, in the current full-screen mobile terminal, an earphone hole is always required to be arranged so that a user can use the earphone hole to realize connection between a mobile phone and an earphone. However, the earphone hole is arranged to destroy the integrity of the casing of the whole mobile terminal and affect the appearance, and the structural design also needs to consider water resistance and dust resistance, so that water inflow and hole blockage are avoided, and the design cost of the casing is increased.

Therefore, in order to overcome the above-mentioned drawbacks, the present application provides a new mobile terminal and connector, so that when an external audio device is connected to the mobile terminal through the connector, it is not necessary to provide an earphone hole in the mobile terminal, but the connection between the external audio device and the mobile terminal can still be achieved.

Referring to fig. 1, an audio playing system provided in an embodiment of the present application is shown, where the system includes: an external audio device 10, a connector 20, and a mobile terminal 30. The external audio device 10 is connected with the mobile terminal 30 through the connector 20. The external audio device 10 may be an audio playing device such as an earphone and a sound box, an audio collecting device such as a microphone, or a communication device such as an earphone with a microphone.

Wherein, the connector includes: the audio connecting terminal is used for connecting with external audio equipment; a plurality of first connecting terminals, a plurality of first connecting terminals with audio connecting terminal connects, a plurality of first connecting terminals are used for being connected with a plurality of second connecting terminal one-to-one of mobile terminal, a plurality of first connecting terminals with a plurality of second connecting terminal are used for realizing external audio equipment with the transmission of audio signal between the mobile terminal.

Referring to fig. 2 and 6, fig. 2 to 4 show the structure of the connector in a first viewing angle, and fig. 5 and 6 show the structure of the connector in a second viewing angle.

As shown in fig. 2, the connector 20 includes the audio connection terminal 210, and specifically, the connector 20 includes a connector housing 230, the connector housing 230 includes a first housing portion 2301 and a second housing portion 2302, the first housing portion 2301 is provided with a first mounting surface 231, and the audio connection terminal 210 is opened at the first mounting surface 231. The audio connection terminal is used for connecting with an external audio device, and particularly, the audio connection terminal may be a connection hole of the audio device. In particular, it may be the headphone jack shown in fig. 2, for example, it may be a 3.5mm headphone jack; the type-c interface shown in fig. 3 may be used, and the lightning interface shown in fig. 4 may be used, and different connection holes may be used for audio devices with different interfaces.

As shown in fig. 5, the second housing portion 2302 of the connector housing 230 includes a second mounting surface 232, a plurality of first connection terminals 220 are disposed on the second mounting surface 232, and the plurality of first connection terminals 220 are connected to the audio connection terminals 210. The plurality of first connection terminals 220 are used to connect with the mobile terminal 30, thereby enabling transmission of an audio signal with the mobile terminal, and the plurality of first connection terminals 220 can transmit an audio signal acquired from the mobile terminal 30 to the audio connection terminal and transmit the audio signal to the external audio device 10 through the audio connection terminal, and can also transmit an audio signal acquired from the external audio device 10 to the mobile terminal 30 through the audio connection terminal 210 and the plurality of first connection terminals 220. Specifically, the audio connection terminal is connected with the plurality of first connection terminals through a first audio line.

As shown in fig. 6, the plurality of first connection terminals include a first microphone contact 221, a first right channel contact 222 and a first left channel contact 224, a first detection contact 223 and a first ground contact 225. Specifically, between the first microphone contact 221 and the first ground contact 225, there are the first right channel contact 222, the first detection contact 223 and the first left channel contact 224 in sequence. As shown in fig. 4, there are a first microphone contact 221, a first right audio track contact 222 and a first detection contact 223, a first left audio track contact 224 and a first ground contact 225 in order from left to right. As an embodiment, the first audio line includes a plurality of connection lines, and specifically, may include a first left channel connection line, a first right channel connection line, a first microphone connection line, a first detection signal connection line, and a first ground line, where the audio connection terminal is connected to the first microphone contact 221 through the first microphone connection line, so as to enable transmission of a microphone signal, the audio connection terminal is connected to the first right channel contact 222 through the first right channel connection line, so as to enable transmission of a right channel signal, the audio connection terminal is connected to the first left channel contact 224 through the first left channel connection line, so as to enable transmission of a left channel signal, and the audio connection terminal is connected to the first detection contact through the first detection signal connection line, so as to enable transmission of a detection signal.

Wherein the plurality of first connection terminals 220 may be conductive metal sheets disposed on the surface of the connector housing 230. Specifically, when the plurality of first connection terminals 220 are conductive metal sheets, the plurality of first connection terminals 220 are coplanar with the second mounting surface 232 of the connector housing 230, so that the plurality of first connection terminals 220 are not protruded nor recessed on the second mounting surface 232, but are located on the same plane as the second mounting surface 232.

In addition, fig. 7 shows a cross-sectional view of the second housing portion 2302 a-a' of the connector 20 of fig. 6, and as shown in fig. 7, the plurality of first connection terminals 220 may further include conductive metal pins 226 and elastic members 241 connected thereto, the conductive metal pins 226 including top ends 2261 and bottom ends 2262. The conductive metal pins 226 are movable within the connector housing 230, thereby enabling the conductive metal pins 226 to telescope. Specifically, the elastic member 241 may be a spring, in which the bottom end 2262 of the conductive metal pin 226 is disconnected from the audio connection terminal 210 in an initial state, and when the top end 2261 of the conductive metal pin 226 is pressed down or subjected to an external force toward the inside of the connector housing 230, that is, when the elastic member is pressed, the elastic member is elastically deformed, and the bottom end 2262 of the conductive metal pin 226 is in contact with the audio connection terminal 210, so that the conductive metal pin 226 and the audio connection terminal 210 are conducted.

Specifically, when the top end 2621 of the conductive metal pin 226 is connected with the second connection terminal, the elastic member is pressed and the bottom end 2262 of the conductive metal pin 226 is connected with the audio connection terminal 210.

As an embodiment, the connector 20 further includes a conductive device 240, the conductive device 240 is disposed inside the connector housing 230, the conductive device 240 is connected to the audio connection terminal 210, and when the elastic member is in the initial state, the bottom end 2262 of the conductive metal pin 226 is disconnected from the conductive device 240, so that the conductive metal pin 226 is disconnected from the audio connection terminal. When the top end 2621 of the conductive metal pin 226 is connected to the second connection terminal, the elastic member is compressed and the bottom end 2262 of the conductive metal pin 226 is connected to the conductive device 240, so that the bottom end 2262 of the conductive metal pin 226 is connected to the audio connection terminal 210.

When the external force applied to the top end 2621 of the conductive metal pin 226 is removed, for example, when the top end 2621 of the conductive metal pin 226 is disconnected from the second connection terminal, the elastic potential energy of the elastic member can restore the top end 2621 of the conductive metal pin 226 to the initial position, so that the bottom end 2262 of the conductive metal pin 226 is disconnected from the audio connection terminal 210.

Specifically, as shown in fig. 7, the connector includes a plurality of sliding channels, each second connection terminal corresponds to one sliding channel, the second connection terminal can slide in the corresponding sliding channel, a top end opening of the sliding channel is provided on the housing of the connector, a top end 2621 of the second connection terminal can be moved out of the top end opening, the conductive device 240 is provided at a bottom end of the sliding channel, and a bottom end 2622 of the second connection terminal can be close to or far from the conductive device 240. An insulating member 243 is disposed between the conductive member 240 and the bottom end 2622 of the second connection terminal, an elastic member 241 is disposed on the insulating member 243, and a conductive layer 242 is disposed on an inner sidewall of the sliding channel at a bottom position near the bottom end, and the conductive layer 242 is connected to the conductive member 240.

When the top end 2621 of the second connection terminal is pressed to cause the bottom end 2622 of the second connection terminal to move toward the conductive device 240, the bottom end 2622 of the second connection terminal abuts against the elastic element 241, the elastic element 241 is pressed, and the bottom end 2622 of the second connection terminal is connected to the conductive layer 242, so that the second connection terminal is connected to the audio connection terminal 210 through the conductive layer 242. At this time, when the pressing force applied to the top end 2621 of the second connection terminal disappears, and the bottom end 2622 of the second connection terminal moves away from the conductive device 240, the bottom end 2622 of the second connection terminal is disconnected without contacting the conductive layer 242 along with the movement of the bottom end 2622 of the second connection terminal, and the elastic force of the elastic member 241 can push the bottom end 2622 of the second connection terminal to move in a direction away from the conductive device 240.

In addition, the maximum moving distance of the bottom end 2262 of the conductive metal pin 226 inside the connector housing 230 depends on the interval between the bottom end 2262 of the conductive metal pin 226 and the audio connection terminal 210, and, in particular, it may be that the maximum travel distance is dependent on the spacing between the bottom end 2262 of the conductive metal pin 226 and the conductive feature 240, and in particular, as shown in fig. 7, the conductive device 240 may be plural, and the number thereof is the same as the number of the first connection terminals 220, i.e., the same number of conductive metal pins 226 as the number of conductive devices 240, one conductive device 240 for each conductive metal pin 226, the spacing between the bottom end 2262 of the conductive metal pin 226 and the corresponding conductive feature 240 of the conductive metal pin 226 is greater than or equal to the first length, wherein the first length is the length of the conductive metal pin 226 extending out of the connector housing 230 when the elastic member is in the initial state, i.e., the perpendicular distance of the tip 2261 of the conductive metal pin 226 from the second mounting surface 232. So that when the top ends 2621 of the conductive metal pins 226 are connected with the second connection terminals, the elastic member is compressed, and the bottom ends 2262 of the conductive metal pins 226 move by a distance equal to the first length, so that when the bottom ends 2262 of the conductive metal pins 226 are in contact with the conductive device 240, the top ends 2261 of the conductive metal pins 226 are just flush with the second mounting surface 232, i.e., the end surfaces of the top ends 2261 of the conductive metal pins 226 are coplanar with the second mounting surface 232, thereby reducing the gap between the first connection terminals of the connector 20 and the second connection terminals of the mobile terminal.

As another embodiment, as shown in fig. 8, the first connection terminal 220 is a metal dome. That is, the first connection terminal 220 is a conductive metal sheet made of an elastic metal material, and in an initial state, the metal spring protrudes from the second mounting surface 232 of the connector 20, and at this time, the metal spring is disconnected from the audio connection terminal 210, and when the metal spring is pressed, specifically, when the metal spring is connected to the second connection terminal, the metal spring is in a pressed state, and the metal spring is connected to the audio connection terminal 210. When the pressing force disappears, that is, the metal dome is disconnected from the second connection terminal, the metal dome returns to the initial state, that is, is disconnected from the audio connection terminal 210.

Specifically, as shown in fig. 8, the connector 20 further includes a conductive device 240, the conductive device 240 is disposed inside the connector housing 230, the conductive device 240 is connected to the audio connection terminal 210, and when the metal dome is in an initial state, the metal dome is disconnected from the conductive device 240, so that the metal dome is disconnected from the audio connection terminal 210. When the metal dome is connected to the second connection terminal, the metal dome is pressed and connected to the conductive device 240, so that the metal dome is connected to the audio connection terminal 210.

Specifically, the second mounting surface 232 of the connector housing 230 is provided with a plurality of openings, the metal dome and the conductive device 240 are disposed at the openings, and each opening corresponds to one metal dome and the conductive device 240, wherein the conductive device 240 is disposed inside the connector housing 230 and located at the opening, when the metal dome is in an initial state, the metal dome protrudes out of the surface of the second mounting surface 232, specifically, the metal dome is semicircular in the initial state, and then the arc top of the metal dome protrudes out of the surface of the second mounting surface 232. When the metal dome is pressed, the metal dome deforms toward the inside of the connector housing 230, i.e., the opening, and then the metal dome is connected to the conductive device 240, so that the metal dome is connected to the conductive device 240.

In some embodiments, in view of preventing the connector from being disconnected from the mobile terminal due to an external force and a movement of at least one of the connector or the mobile terminal when the connector is connected to the mobile terminal, a fastener may be provided to fix the connection between the connector and the mobile terminal.

As another embodiment, it is also possible that the second connection terminals protrude from a surface of the mobile terminal, and the clips grip portions of the second connection terminals protruding from the surface of the housing when the connector is connected to the plurality of second connection terminals, specifically, as described in the following embodiments.

In addition, the connector 20 is further provided with a first detection terminal 260, configured to cooperate with a second detection terminal of the mobile terminal, so that the mobile terminal determines that the plurality of first connection terminals are successfully connected with the plurality of second connection terminals when detecting that a voltage change of an electrical signal between the second detection terminal and the first detection terminal 260 meets a preset condition. As an embodiment, the first sensing terminal 260 may be disposed on the second mounting surface 232.

Specifically, a specific embodiment of the cooperative use between the first detection terminal 260 and the second detection terminal thereof may be described in the subsequent embodiments.

Referring to fig. 9 and 10, fig. 10 is a partially enlarged view of a portion a in fig. 9.

The mobile terminal 30 includes a housing 310, a main board (not shown in the figure), and a plurality of second connection terminals 320, the plurality of second connection terminals 320 are disposed in a connection area 311 on the surface of the housing 310, the plurality of second connection terminals 320 are all connected to the main board, the plurality of second connection terminals 320 are used for being connected to the plurality of first connection terminals 220 of the connector 20 in a one-to-one correspondence manner, wherein the plurality of second connection terminals 320 are used for transmitting the audio signal output from the main board to the plurality of first connection terminals 220 of the connector 20.

The main board is integrated with a plurality of modules, and the modules are used for realizing a plurality of functions of the mobile terminal. Specifically, the motherboard has one or more (only one shown) processors, memories, audio circuits, an input module, a power supply module, and the like integrated thereon.

Those skilled in the art will appreciate that all other components are peripheral devices with respect to the processor, and the processor is coupled to the peripheral devices through a plurality of peripheral interfaces. The peripheral interface may be implemented based on the following standards: universal Asynchronous Receiver/Transmitter (UART), General Purpose Input/Output (GPIO), Serial Peripheral Interface (SPI), Inter-Integrated Circuit (I2C), but is not limited to the above standards.

The memory may be used to store software programs and modules, and the processor may execute various functional applications and data processing by operating the software programs and modules stored in the memory. The memory may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include memory located remotely from the processor, which may be connected to a motherboard or a primary display screen via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The audio circuit, the receiver, the audio interface and the microphone together provide an audio interface between the user and the mobile terminal. Specifically, the audio circuit receives sound data from the processor, converts the sound data to an electrical signal, and transmits the electrical signal to the earpiece. The earphone converts the electrical signals into sound waves that can be heard by the human ear. The audio circuit also receives electrical signals from the microphone, converts the electrical signals to sound data, and transmits the sound data to the processor for further processing. Audio data may be retrieved from the memory. In addition, audio data may also be stored to the memory.

In addition, when the mobile terminal is connected to the peripheral audio device, the mobile terminal is connected to the peripheral audio device through the second connection terminal 320, the second connection terminals 320 are connected to the audio interface of the motherboard, the audio circuit receives the sound data from the processor, converts the sound data into an electrical signal, and transmits the electrical signal to the second connection terminals 320, and when the second connection terminals 320 are connected to the peripheral audio device through the connector 20, the electrical signal can be transmitted to the peripheral audio device, and of course, the audio data can be acquired through the peripheral audio device.

The input module may include the touch screen disposed on the main display screen, and the touch screen may collect touch operations of the user on or near the touch screen (for example, operations of the user on or near the touch screen using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a preset program. Optionally, the touch screen may include a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor, and can receive and execute commands sent by the processor. In addition, the touch detection function of the touch screen can be realized by adopting various types such as resistance type, capacitance type, infrared ray, surface acoustic wave and the like.

The main display is used to display information input by a user, information provided to the user, and various graphic user interfaces of the mobile terminal, which may be configured by graphics, text, icons, numbers, video, and any combination thereof, and in one example, the touch screen may be provided on a display panel so as to be integrated with the display panel.

The power module is used for providing power supply for the processor and other components. Specifically, the power module may include a power management system, one or more power sources (e.g., batteries or ac power), a charging circuit, a power failure detection circuit, an inverter, a power status indicator, and any other components associated with the generation, management, and distribution of power to the mobile terminal.

The housing 310 includes a middle frame, a back plate and a front frame, wherein the display screen of the mobile terminal is disposed on the front frame, the middle frame connects the front frame and the back plate, and then the plurality of second connection terminals 320 may be disposed on the middle frame or the back plate of the mobile terminal, as shown in fig. 9, the plurality of second connection terminals 320 are disposed on the middle frame of the mobile terminal and near the connection area 311 at the bottom end of the mobile terminal. As another embodiment, as shown in fig. 11, the plurality of second connection terminals 320 are disposed on a surface of a bottom side of the middle frame of the mobile terminal, but may also be disposed on a surface of a back plate or a top side of the middle frame of the mobile terminal or other areas, which is not limited herein.

In addition, the mobile terminal 30 further includes a second detection terminal 340 disposed in the connection region 311, and the mobile terminal is capable of collecting a voltage variation of an electrical signal between the second detection terminal 340 and the first detection terminal 260. In particular, the second detection terminal and the first detection terminal can constitute a voltage detection device for detecting a change in voltage of the electrical signal between the second detection terminal and the first detection terminal. The voltage change of the electrical signal may be a change of an amplitude value of the voltage of the electrical signal, and specifically, may be a change of a high level and a low level of the voltage of the electrical signal, that is, a high level changes to a low level, or a low level changes to a high level.

The voltage detection device is connected to the motherboard, specifically, the second detection terminal 340 may be connected to the motherboard, a voltage change of the second detection terminal 340 may be collected by the motherboard, and on/off between the second detection terminal and the first detection terminal may cause a change in a high/low level of a voltage at an output end of the voltage detection device, i.e., the second detection terminal. In one embodiment, when the second detection terminal 340 is not connected to the first detection terminal 260, the voltage of the second detection terminal 340 may be low, and specifically, the second detection terminal 340 may be a ground terminal. When the second detection terminal 340 is connected to the first detection terminal 260, the first detection terminal 260 can pull up the voltage of the second detection terminal 340 to a high level. Specifically, the first detection terminal 260 may be capable of outputting a high level, and when the first detection terminal 260 is connected to the second detection terminal 340, the first detection terminal 260 may be capable of pulling up the level of the second detection terminal 340, thereby causing a level change from a low level to a high level.

In another embodiment, the first detection terminal 260 and the second detection terminal 340 may be connected and disconnected at different levels by a logic circuit such as a triode or a thyristor. As shown in fig. 12, the mobile terminal includes a detection circuit capable of detecting an output of the voltage detection device, i.e., a voltage variation of an electrical signal between the first detection terminal and the second detection terminal, the detection circuit includes a transistor VT, a first resistor R1 and a second resistor R2, and a power supply terminal Vcc connected to a base of the transistor VT through a first resistor R1, an emitter of the transistor VT is connected to a main board and one end of a second resistor R2, respectively, the other end of the second resistor R2 is grounded, the base of the transistor VT is connected to a contact ID1, the contact ID1 is connected to the second detection terminal 340, and the first detection terminal 260 is a ground terminal, when the first detection terminal 260 is disconnected from the second detection terminal 340, the transistor is turned on, a voltage input to the main board is high level, when the first detection terminal 260 is connected to the second detection terminal 340, the base electrode of the triode is pulled low, so that the triode is cut off, and the voltage input into the mainboard is low level. Therefore, the main board can detect that the voltage change of the electric signal between the second detection terminal and the first detection terminal is changed from high level to low level, so that the voltage change of the electric signal between the second detection terminal and the first detection terminal meets the preset condition, and the plurality of first connection terminals are successfully connected with the plurality of second connection terminals.

The triode is NPN type, and if PNP type is used, the voltage input to the main board is low when the first detection terminal 260 and the second detection terminal 340 are disconnected, and the voltage input to the main board is high when the first detection terminal 260 and the second detection terminal 340 are connected. Therefore, the main board can detect that the voltage change of the electric signal between the second detection terminal and the first detection terminal is changed into low level and high level, so that the voltage change of the electric signal between the second detection terminal and the first detection terminal meets the preset condition, and the plurality of first connection terminals are successfully connected with the plurality of second connection terminals.

When there are a plurality of second detection terminals, the detection circuit may be a plurality of detection circuits, and each second detection terminal may be connected to the ID1 of one detection circuit.

As another embodiment, as shown in fig. 13, if there are two second detection terminals, the detection circuit in the mobile terminal includes a power supply terminal Vcc, a third resistor R3 and a fourth resistor R4, the power supply terminal Vcc is connected to the first end of the third resistor R3 and the first end of the fourth resistor R4, the first end of the third resistor R3 and the first end of the fourth resistor R4 are connected to the motherboard, the second end of the third resistor R3 is connected to one second detection terminal through a contact ID1, and the second end of the fourth resistor R4 is connected to the other second detection terminal through a contact ID 2. The first detection terminal is a ground terminal.

When the first test terminal 260 is disconnected from the second test terminal 340, the contact ID1 and the contact ID2 are floating, and the voltage inputted to the main board is high level, and when the first test terminal 260 is connected to the second test terminal 340, the contact ID1 and the contact ID2 are grounded, and the voltage inputted to the main board is low level. Therefore, the main board can detect that the voltage change of the electric signal between the second detection terminal and the first detection terminal is changed from high level to low level, so that the voltage change of the electric signal between the second detection terminal and the first detection terminal meets the preset condition, and the plurality of first connection terminals are successfully connected with the plurality of second connection terminals.

It should be noted that the detection circuit may also be a part of the motherboard, and the detection circuit is connected to a processor of the motherboard.

As an implementation manner, the second detection terminal is connected to the main board through I2C, when the connector is connected to the mobile terminal, the main board detects a voltage change between the second detection terminal and the first detection terminal, and the main board can display the voltage change on a screen of the mobile terminal, so that a user can adjust a position between the connector and the mobile terminal according to the displayed distance information, and when the alignment is accurate, the mobile terminal prompts that the connector is successfully connected or prompts that the external audio device is successfully connected.

Specifically, when the main board determines that the plurality of first connecting terminals are connected to the plurality of second connecting terminals, a reminding message may be sent, where the reminding message may be text message displayed on a screen of the mobile terminal, or voice message sent by the mobile terminal, or vibration, etc. to remind the user that the first connecting terminals and the second connecting terminals have been successfully connected.

Therefore, when the first detection terminal 260 contacts the second detection terminal 340, the main board of the mobile terminal can determine that the plurality of first connection terminals are successfully connected with the plurality of second connection terminals, that is, the electrical connection between the external audio device and the mobile terminal is established, and the first connection terminal 260 and the second connection terminal can transmit the audio signal.

It should be noted that, the transmission of the audio signal between the external audio device and the mobile terminal is realized through the electrical connection before the first connection terminal and the second connection terminal, and when the voltage change of the electrical signal before the first detection terminal and the second detection terminal meets the preset condition, the mobile terminal can determine that the plurality of first connection terminals are successfully connected with the plurality of second connection terminals, for example, the positions of the first detection terminal and the second detection terminal can be reasonably set, so that when the plurality of first connection terminals and the second connection terminals are connected in a one-to-one correspondence manner, the first detection terminal and the second detection terminal can be just connected.

In one embodiment, two first detection terminals and two second detection terminals may be provided, and the plurality of first connection terminals may be provided between the two first detection terminals and the plurality of second connection terminals may be provided between the two second detection terminals. The connection line between the two first detection terminals is a first connection line, and the connection line between the two second detection terminals is a second connection line, so that the distribution mode of the plurality of first connection terminals on the first connection line is matched with the distribution mode of the plurality of second connection terminals on the second connection line, thereby ensuring that the plurality of first connection terminals and the plurality of second connection terminals are connected in a one-to-one correspondence manner when the two first detection terminals and the two second detection devices are in one-to-one correspondence contact, and specifically, the specific implementation mode of the one-to-one correspondence connection of the plurality of first connection terminals and the plurality of second connection terminals can refer to the subsequent embodiment. As an embodiment, the main board is connected to the second connection terminal through a second audio line.

As shown in fig. 10, the plurality of second connection terminals include a second microphone contact 321, a second right channel contact 322, and a second detection contact 323, a second left channel contact 324, and a second ground contact 325. Specifically, the second microphone contact 321 and the second ground contact 325 are, in order, the second right channel contact 322, the second detection contact 323, and the second left channel contact 324. As shown in fig. 8, in the direction from the front frame to the back panel of the housing 310, there are a second microphone contact 321, a second right channel contact 323, a second detection contact 323, a second left channel contact 324, and a second ground contact 325 in this order. As an implementation manner, the second audio line includes a plurality of connection lines, and specifically, may include a second left channel connection line, a second right channel connection line, a second microphone connection line, a second detection signal connection line, and a second ground line, where the audio connection terminal is connected to the second microphone contact through the second microphone connection line, so as to enable transmission of a microphone signal, the audio connection terminal is connected to the second right channel contact through the second right channel connection line, so as to enable transmission of a right channel signal, the audio connection terminal is connected to the second left channel contact through the second left channel connection line, so as to enable transmission of a left channel signal, and the audio connection terminal is connected to the second detection contact through the second detection signal connection line, so as to enable transmission of a detection signal.

In one embodiment, the arrangement of the two first detection terminals 260, the first microphone contact 221, the first right channel contact 222, the first detection contact 223, the first left channel contact 224 and the first ground contact 225 is described as a first arrangement, and the arrangement of the two second detection terminals 340, the second microphone contact 321, the second right channel contact 323, the second detection contact 323, the second left channel contact 324 and the second ground contact 325 is described as a second arrangement, so that the first arrangement corresponds to the second arrangement, that is, the arrangement of the plurality of first connection terminals 220 and the plurality of second connection terminals 320 is the same, as shown in fig. 6 and 10, the first detection terminals 260, the first microphone contact 221, the first right channel contact 222, the first detection contact 223, the first left channel contact 224, the first ground contact 225 and the other first detection terminals 260 are arranged along a straight line, the second detection terminal 340, the second microphone contact 321, the second right channel contact 323, the second detection contact 323, the second left channel contact 324, the second ground contact 325, and the other second detection terminal 340 are also arranged along a straight line.

As shown in fig. 14 and 15, when the plurality of first connection terminals 220 are connected to the plurality of second connection terminals 320, the first microphone contact 221 is connected to the second microphone contact 321, the first right channel contact 222 is connected to the second right channel contact 322, the first sensing contact 223 is connected to the second sensing contact 323, the first left channel contact 224 is connected to the second left channel contact 324, and the first ground contact 225 is connected to the second ground contact 325.

Wherein the second sensing contact 323 may be a test terminal. For example, it may be a DET terminal. And the first sensing contact 223 may be a ground terminal. The test signal between the test terminal and the ground terminal is conducted when the second detection contact 323 is connected to the first detection contact 223, so that the main board of the mobile terminal can be currently connected with the connector, and it can be determined that the currently-connected external audio device is connected to the mobile terminal. The first and second

left channel contacts

224 and 324 are used to enable transmission of a left channel signal of the audio signal, the first and second

right channel contacts

222 and 322 are used to enable transmission of a right channel signal of the audio signal, and the first and

second microphone contacts

221 and 321 are used to enable collection of voice data entered by a user through a microphone of the peripheral audio device.

In addition, in order to reduce the number of second connection terminals 320 disposed on the surface of the housing 310 of the mobile terminal so that a user may affect the use of the mobile terminal when holding the mobile terminal, the plurality of second connection terminals 320 may be disposed as a conductive metal sheet attached to the connection region 311 of the housing 310 of the mobile terminal.

Specifically, the conductive metal sheet includes a first surface coplanar with the connection region 311, the first surface for connection with the first connection terminal 220, and a second surface connected with the main board. Therefore, since the first surface of the conductive metal sheet is coplanar with the connection region, the conductive metal sheet is coplanar with the housing 310 of the mobile terminal, that is, the conductive metal sheet does not protrude from the housing and is not recessed from the surface of the housing 310, so that the entire housing 310 has a more complete structure and a more beautiful appearance.

As shown in fig. 14, as an embodiment, the second connection terminal 320 is a conductive metal groove, that is, the second connection terminal 320 may be provided in the shape of a groove on the basis of the conductive metal sheet, the conductive metal groove is provided in the connection region 311 of the housing 310, the second connection terminal 320 is a conductive metal protrusion matched with the conductive metal groove, and when the plurality of second connection terminals 320 are connected to the connector 20, the conductive metal protrusion is located in the conductive metal groove and contacts with the conductive metal groove. As an embodiment, the conductive metal groove may be a circular arc, and the top of the conductive metal protrusion is also a hemispherical protrusion, and the arc of the circular arc of the conductive metal groove is the same as the arc of the conductive metal protrusion, so that the conductive metal protrusion is matched with the conductive metal groove in shape when the conductive metal protrusion is located in the conductive metal groove.

In addition, in order to ensure that the connector and the mobile terminal are connected more firmly, a fixing part can be arranged on the mobile terminal, so that the connector and the mobile terminal can be fixed when the connector is connected with the mobile terminal, and a fastening part can also be arranged on the connector, so that the fastening part and the fixing part can be matched for use, so that the connector and the mobile terminal are fixed when the connector is connected with the mobile terminal.

As an embodiment, as shown in fig. 16, a fixing member 330 may be provided at the mobile terminal, and a fastening member 250 may be provided at the connector, the fixing member being a first magnet, and the fastening member being a second magnet, and when the plurality of second connection terminals are connected to the connector, the first magnet may be attracted to the second magnet of the connector, thereby fixing the housing and the connector. Specifically, the first magnet and the second magnet may be provided in a plurality of pairs. For example, one second magnet is provided beside each first connection terminal, and one first magnet is provided at the traitor of each second connection terminal.

In addition, as another embodiment, it is also possible to provide only the fastener 250 at the connector, and not to provide the fixing member 330 at the mobile terminal. For example, if the fastening member 250 is the clip, the second connection terminal may protrude from the surface of the connection region of the housing of the mobile terminal by a certain height, and the clip can clamp the portion of the second connection terminal protruding from the surface of the housing of the mobile terminal, so as to clamp the second connection terminal, thereby realizing the firm connection between the mobile terminal and the connector.

Further, as an embodiment, the mobile terminal may be provided with the fixing member 330 without the connector being provided with the fastener, and the fixing member may be the clip described above, and the clip may be capable of clipping a portion of the first connection terminal protruding out of the second mounting surface of the housing of the connector to achieve a secure connection of the mobile terminal and the connector.

In another embodiment, the mobile terminal may be provided with a plurality of fixing members 330 and a plurality of fastening members 250, i.e., the first magnet, the second magnet and the clip.

It should be noted that the external audio device 10 and the connector 20 can be used as two separate components, and when the external audio device 10 is used, the external audio device 10 is connected to the audio connection terminal of the connector, as shown in fig. 17, the external audio device 10 includes an audio device body 11 and an audio connector 12, the audio connector 12 can be connected to the audio connection terminal of the connector, specifically, the audio connection terminal of the connector is a headphone jack, the external audio device 10 is a headphone, the audio device body 11 is a headphone body, the audio connector 12 is a headphone plug, and the headphone plug can be, for example, a 3.5mm headphone plug. The audio device body includes various circuit modules of the external audio device, specifically, an audio processing circuit, a power supply module, and the like.

When the external audio device 10 is an earphone, for example, the earphone plug of the earphone is inserted into the earphone jack of the connector, and then the first microphone contact 221 of the connector is connected with the second microphone contact 321, the first right channel contact 222 is connected with the second right channel contact 322, the first detection contact 223 is connected with the second detection contact 323, the first left channel contact 224 is connected with the second left channel contact 324, and the first ground contact 225 is connected with the second ground contact 325, so that the connection between the earphone and the mobile terminal is realized, and then the user can obtain the audio signal output by the mobile terminal through the earphone, and can input the voice signal to the mobile terminal through the microphone of the earphone.

As another embodiment, the audio device body of the external audio device 10 and the connector 20 form an integral component, i.e., the audio device 100. As shown in fig. 18, the audio device 100 includes an audio device body 11 and a connector 20, and the audio device body 11 is connected to an audio connection terminal of the connector 20 to constitute one audio device.

When the audio device 100 is used as an earphone, for example, the user connects the first microphone contact 221 and the second microphone contact 321, the first right channel contact 222 and the second right channel contact 322, the first detection contact 223 and the second detection contact 323, the first left channel contact 224 and the second left channel contact 324, and the first ground contact 225 and the second ground contact 325 of the connector 20 of the audio device 100, so as to connect the earphone and the mobile terminal.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A connector, comprising:

the audio connecting terminal is used for connecting with external audio equipment;

the first connecting terminals are connected with the audio connecting terminals, the first connecting terminals are used for being connected with second connecting terminals of a mobile terminal in a one-to-one correspondence mode, and the first connecting terminals and the second connecting terminals are used for realizing transmission of audio signals between the external audio equipment and the mobile terminal;

the first detection terminal is used in cooperation with the second detection terminal of the mobile terminal to form a voltage detection device for detecting the change of the voltage of the electric signal between the first detection terminal and the second detection terminal.

2. The connector according to claim 1, wherein the first detection terminal is grounded, and the second detection terminal is connected to a power supply.

3. The connector of claim 1, wherein the first connection terminal comprises a first microphone contact, a first right and left audio track contact, a first detection contact, and a first ground contact.

4. The connector according to claim 1, wherein the first detection terminals are two, and the plurality of first connection terminals are provided between the two first detection terminals.

5. The connector according to claim 1, wherein the first connection terminal is a metal dome;

when the metal elastic sheet is connected with the second connecting terminal, the metal elastic sheet is in a squeezing state, and the metal elastic sheet is connected with the audio connecting terminal.

6. The connector according to claim 1, wherein the first connection terminal includes a conductive metal pin and an elastic member connected to the conductive metal pin, the conductive metal pin including a top end and a bottom end;

when the top end of the conductive metal needle is connected with the second connecting terminal, the elastic piece is extruded and the bottom end of the conductive metal needle is connected with the audio connecting terminal.

7. The connector according to claim 1, further comprising a fastener, wherein the fastener is a clip for clamping the housing of the mobile terminal to fix the connector and the housing when the connector is connected to the plurality of second connection terminals.

8. A mobile terminal, comprising:

a housing;

a main board;

a plurality of second connection terminals disposed in a connection area of the housing surface, the plurality of second connection terminals each being connected to the main board, the plurality of second connection terminals being configured to be connected to the plurality of first connection terminals of the connector according to any one of claims 1 to 7 in a one-to-one correspondence, wherein the plurality of second connection terminals are configured to enable transmission of audio signals between the main board and the plurality of first connection terminals of the connector;

a second detection terminal, disposed in the connection area, connected to the main board, for cooperating with the first detection terminal of the connector of any of claims 1-7 to constitute a voltage detection device for detecting a change in voltage of an electrical signal between the second detection terminal and the first detection terminal.

9. The mobile terminal of claim 8, wherein the second detection terminal is connected to a power supply, and wherein the first detection terminal is connected to ground.

10. The mobile terminal of claim 8, wherein the second connection terminal comprises a second microphone contact, a second right channel contact and a second left channel contact, a second detection contact and a second ground contact.

11. The mobile terminal according to claim 8, wherein the number of the second detection terminals is two, and the plurality of second connection terminals are disposed between the two second detection terminals.

12. An audio device characterized by comprising an audio device body and the connector according to any one of claims 1 to 7, the audio device body being connected to the audio connection terminal of the connector.